Corrugating machine guide structure



Feb. 20, 1951 u R 2,542,230

CORRUGATING MA GU STRUCTURE Filed April 9, 1949 2 Sheets-Sheet l Feb. 20, 1951 H. w. BRUKER CORRUGATING MACHINE GUIDE STRUCTURE 2 Sheets-Sheet 2 Filed April 9, 1949 INVENTOR.

By arm/Q Patented Feb. 20, 195 1 UNITED STATES PATENT OFFICE eaeeeenise ease STRUCTURE Hobart W. Bruker, 'Bordentown-,'N. Jr, assignor to George W. Swift, Jr. lncg, Bordentown, N. J., a corporation of New Jersey lippiiatih Aiiril 9, 194?), serial he; sent 8 Claims.

, Thejihventi oh relates to corrugatingmachines iis'edin the manufacture ofcorrugated paper and corrugated paperboard, having fluted rolls betweenwhich the web to be corrugated is'p'asjsed, an stripper members'and guide members which separate the web from the first corrugating roll,

and guide it partially around the second corrugatin'g roll in proper relation to the fiuted pejfri'phe'ry thereof. In machinery of the above character, the curtailment of shut down time dueto Ine'cessary adjustment, cleaning, repair or replacef'nuent offthe web strippiing and guiding members is Oif prime importanceand the invention aims s marily'to provide a web'stripping and guiding Tstructure'oi the above character wherein the web "stripping members will be effectively held in operating position and 'yet enabled without attenon by the operators to accommodate their -pofbitions to varying operating conditions such as Further objects and advantages of the invention will be, in part obvious and in part specifically fmentioned in the description hereinafter con-- tained which, taken in conjunction with the acfc oinpany'in'g drawings discloses acorrugating'ma- [chine guide structure constructed to operate'in accordance with the invention. From the standfpointof the invention in its broader aspects the disclosure should be regarded as merely illustrative of the principles thereof. In the drawings+ Fig. 1 is a longitudinal vertical sectional view "taken through the parts of a'corrugating machine with which the present invention is primaril'y'concerned,

Fig. 2 is a fragmentarysectional view illus- "native of the operation of removing a stripper blade from operative position, or inserting it into "such'position. V

Fig. 3 is a View lookin'gfdownwardly from the upper "left hand'part of Fig. 1 toward the first corrugating roll, and showing the stripperblades u andimmediately"associated parts. W q

i Fig. '4 isia detail section on thebroken line l 4 iitFig. 1, looking in thedirecticnof the arrows. "Reje'rring first more particularly to Figs. and 3fthe "invention "is clisizlbsed hsafifili'd to a 601 guiding members associated with roll 2.

rri ating machin a -a; a first fluted 'corr'h'gating'rollj :m'eshing witha second corrugating roll 2, between which a paper web 3 to be corrugated is .passed. The first corrugating roll I is provided with appropriate bearings 4 (Fig. 3) at its ap osite ends, and theroll I is adjustable toward and from roll 2 at both its ends, in order that the c test: roll i throughout its length, will pe strate to an equal and proper extent into theatres of roll Z. In the form shown, the bearings lfat each end of roll I are mounted within angularity adjustable arms 5 whi ch arepivotally mounted toswing about a bar extending across the mach'ineand supported by parts 7 of the mainframe 9; the machine. Rods a (Fig. 1) maybe eonniected to the outer ends of the arms5, and act'ed upon by suitable springs (not shown) to urge-the roll I yieldingly toward ro1l 2, c c

v The roll I is shown as providedwith aj'series "of peripheral grooves 9, within which stripper blades II] are positioned to insure that the web 3 tolbecorrugated, separatesfrom roll I after passf ijng between themes'h ing flutes of rolls I and] to 'form the corrugations in web 3, and-insure that the corrugated web thus formed willtravel "aro'und peripherally with roll 2, with the corru gations of the web in proper relation to the flutes 'Of r0112.

The rolls I and 2 will be understood as heated ;in accordance with usual practice in the art, and

as previously mentioned the invention includes certain features to the end that the stripper blades III will beenabled toaccorngnodate therns'elves properly to longitudinal expansion and contraction of roll I, and also to movementsof .roll I toward or from roll 2 at either end of-roll l;, without imposing consequentstrains or other- 'wise affecting the hereinafter mentioned Web The stripper blades I0 are so held in position in grooves 9 that they automatically adjust theirpcsitions transversely of the machine in response to longitudinal contraction orexpansion of roll Land alsornov proportionately toward or from r0112 in response to movements of roll I toward or from roll 2 at either or both of the ends of roll I. In the illustrated embodiment'of the ir fventio'n the stripper blades were held in operating position in grooves '9 by the cylindrical pe fripheryfof cross bar 6, the stripper blades being shown as provided with'arcuate notches Ilengaging the bar. Thus as the roll I contractsor expands, each stripper blade In may'slide ireely along bar 6 whilestill being held in positipn "in "its-"groove. Furthermorefthe bar-'6 being coaidal Lfiuence of the stripper blades i). stripper members I 3 may be individually adjusted toward or from the fluted periphery of roll 2 as I may be needed to suit particular operating conditions.

with arms 5, if the roll I moves toward or from roll 2 at either or both of its ends, each stripper blade I4 will shift angularly about the center of bar 6 as an axis, an amount proportional to the movement of its corresponding part of the roll, without straining or distorting the stripper blades or the stripper blade holding member 6 which they engage.

When it is desired to remove one or more of the stripper blades for cleaning, substitution or repair, the bar 6 may be moved angularly as indicated in Fig. 2 until notches I2 therein register respectively with the notches II of the stripper blades, whereupon the stripper blades may be readily removed from or inserted into operative position by movement thereof in an arcuate direction around roll I. As the parts appear in Fig. 2 the blade IIl may be removed by such arcuate movement in a clockwise direction until clear of bar 6. The illustrated form of stripper blade is double-ended, i. e. when the lower end of the blade as shown in Fig. 2 becomes worn, the blade may be taken out and reinserted after turning it upside down.

The web guiding members I3 are shown in the form of relatively thick plates, each of which is I secured by bolts I4 to a block I5 (Fig. 4) which is slidably mounted in a bracket led, the latter being in turn adjustably clamped by a bolt It to a cross piece I? similar to the part designated IS in U. S. Patent No. 2,232,365 issued to 'me on February 18, 1941. The parts immediately above and to the left of this cross piece ll, as the latter appears in Fig. 1, may be understood as similar in construction and mode of operation to the corresponding parts appearing above and tothe left of the member designated I3 in Fig. 2 of the above mentioned patent, and accordingly such parts will not be described in detail herein. It

members I3, which materially reduces strain and wear.

The guide members i3 have curved faces I8 (Fig. 4) which hold the corrugated web 3 in proper relation to the flutes of corrugating roll 2 as the corrugated web travels partially around such roll, after the web has passed beyond the in- Each of the In the form shown, a hand screw I9 extends through a plate 2!} attached to the outside face of the block I5 and is rotatablyheld in position with respect to plate 29 by a collar 2| on screw -I9. This screwas threadedly engages within the slide block I5 and thus rotation of screw I9 adjusts the position of' guide member .corresponding adjustments of stripper blades I0 with respect to roll I. Arcuate supplemental guide fingers 22 extending further around the periphery of roll 2, are

;preferablydeta ched clamped to the guide mem 4, bers I3, as by bolts 23. These supplemental guide fingers as shown in Fig. 4 may be made much thinner than the guide members I3 above mentioned, and as indicated in Fig. 1, they may extend through and beyond the corresponding narrdw peripheral grooves 24 of an adhesive applying roll 25 such as is customarily used in machinery of this character. The guide members I3 preferably are of hardened steel, and are rugged and long lived. The thinner supplemental blades 22 may be readily and economically detached and replaced when worn, and are firmly supported by the plates I3 While in service. The adjustable screws I9 likewise control the spacing of the supplemental guide fingers 22 from the fluted periphery of roll 2.

While the invention has been disclosed as applied to a web stripping and guiding structure of the, above described specific form, it should be understood that changes may be made therein without departing from the invention in its broader aspects, within the scope of the appended claims.

I claim:

1. A corrugating machine of the character described including a first corrugating roll having a series of peripheral grooves therein, a second corrugating roll meshing therewith, stripper blades extending into the grooves of said first corrugating roll, a stripper blade holding structure extending transversely of the'machine adjacent said first corrugating roll, said holding structure and blades having parts engaging to hold said blades in operating positions respectively in said grooves but said parts being slidably engaged in a direction longitudinally of the first corrugating roll to afford movement of said blades longitudinally of said first corrugating roll while retained in said grooves in response to relative longitudinal shifting of the first corrugating roll with respect to the blade holding member.

2. A corrugating machine of the character described including a first corrugating roll having a series of peripheral grooves therein, a second corrugating r011 meshing therewith, bearing members at the opposite ends of said first corrugating roll which are each mounted to afford movement thereof and of the first corrugating roll toward and from said second corrugating roll, stripper blades extending into the grooves of said first corrugating roll and extending partially around the latter, a stripper blade holding structure ex-,

, tending transversely of the machine adjacent said first corrugating roll, said holding structure and blades having parts engaging to hold said blades in operating position in said grooves but said parts being relatively'movable in responseto movementsof the first corrugating roll toward and from the second corrugating roll, to conform the positions of the several stripper blades to their respectively adjacent portions of the first corrugating roll while maintaining said stripper blades in their respective peripheral grooves.

3. A corrugating machine of the character described including a first corrugating roll, having a series of peripheral grooves therein, a second corrugating roll meshing therewith, pivotally mounted arms carrying the'opposite ends of said first corrugating roll to afford movement thereof toward and from said second corrugating roll, stripper blades extending into the grooves of saidfirst corrugating roll and extending partially around the latter, a stripper blade holding structure extending transversely of the machine and positioned substantially coaxially with respect to said arms, said stripper blades being slidably engaged with said holding structure in a direction longitudinally of the first corrugating roll to afford movement of said blades longitudinally of said first corrugating roll while retained in said grooves in response to relative longitudinal shifting of the first corrugating roll with respect to the blade holding member, said blade holding structure and stripper blades also having engaging parts which are relatively angularly moving substantially concentrically with respect to said pivoted arms to conform the positions of the several stripper members to their respective portions of the first corrugating roll, upon movement of the first corrugating roll toward and from the second corrugating roll.

4. A corrugating machine of the character described including a first corrugating roll having a series of peripheral grooves therein, a second corrugating roll meshing therewith, a stripper blade holding structure extending across the machine adjacent said first corrugating roll, arcuate stripper blades interposed between said holding structure and said first corrugating roll and extending partially around the latter, said blade holding structure and blades having parts interengageable to hold said blades in operating position in said grooves but said parts being adjustable to relative positions affording removal of said blades by arcuate movement thereof around said first corrugating roll until clear of said blade holding structure.

5. A corrugating machine of the character described including a first corrugating roll having a series of peripheral grooves therein, a second corrugating roll meshing therewith, a stripper blade holding member extending across the machine adjacent said first corrugating roll, arcuate stripper blades interposed between said holding member and said first corrugating roll and extending partially around the latter, said blade holding member and blades having parts interengageable to hold said blades in operating position in said grooves but said parts being adjust able by angular movement of said blade holding member, into relative positions affording removal of said blades by arcuate movement thereof around said first corrugating roll until clear of said blade holding member.

6, A corrugating machine of the character described including a first corrugating roll having a series of peripheral grooves therein, a second corrugating roll meshing therewith, stripper blades extending into the grooves of said first corrugating roll, a stripper blade holding member extending transversely of the machine adjacent said corrugating roll, said holding member and blades having parts engaging to hold said blades in operating positions respectively in said grooves but said parts being slidably engaged in a direction longitudinally of the first corrugating roll to afford [movement of said blades longitudinally of said first corrugating roll while retained in said grooves in response to relative longitudinal shifting of the first corrugating roll with respect to the blade holding member, a fixed supporting member extending across the machine adjacent said corrugating rolls and web guiding members supported thereby to guide the web partially around said second corrugating roll, mechanism being provided to adjust the position of said guiding members toward and from said second corrugating roll independently of said stripper blades and their aforesaid holding member..

7. A corrugating machine of the character described including a first corrugating roll having a series of peripheral grooves therein, a second corrugating roll meshing therewith, stripper blades extending into the grooves of said first corrugating roll, supporting structure for said stripper blades holding the latter in their respective grooves aforesaid but affording relative movement, longitudinally of said first mentioned corrugating roll, between said stripper blades and their supporting structure while retained in their grooves, in response to relative longitudinal shifting of said first corrugating roll with respect to said supporting structure, web guiding members positioned to guide the web partially around said second corrugating roll, and mechanism acting independently of the aforesaid stripper blades and their supporting structure for adjusting the positions of said guiding members toward and from said second corrugating roll, thereby to afiord said last mentioned adjustments of the guiding members independently of the position of the stripper blades.

8. A corrugating machine of the character described including a first corrugating roll, having a series of peripheral grooves therein, a second corrugating roll meshing therewith, pivota ly mounted arms carrying the opposite ends of said first corrugating roll to afiord movement thereof toward and from said second corrugating roll, stripper blades extending into the grooves of said first corrugating roll and extending partially around the latter, a stripper blade holding bar positioned coaxially with respect to said arms, said stripper blades having notched portions slidably engaged with said holding bar in a direction longitudinally of the first corrugating roll, said bar having notched portions movable by angular movement of said bar about the axis of said arms, into positions adjacent the notched portions of said stripper blades, thereby to afford removal of said blades by arcuate movement thereof around said first corrugating roll until clear of said blade holding bar.

HOBART W. BRUKER.

REFERENCES CITED UNITED STATES PATENTS Name Date Bruker Feb. 18, 1941 Number 

